By Adam, Barbara
By Brown, Lester R
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By Maslin, Mark
By David Coley
By Leiper, Neil, Harris, Rob
By Cole, Brandon;Michael, Scott
By Sinclair, Ian, Ryan, Peter
By Baines, John
By DK
By Food and Agriculture Organization of the United Nations
By Douthwaite, Richard
By Shine, Clare, Williams, Nattley
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By David Holmgren
By Bruce Parry, Jane Houston
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By Bradman, Tony
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By Magdalena, Carlos
By Smith, Tilly
By Sleeth, M.D. J. Matthew, Hunter, Joel C. Dr.
By Carol Inskipp
By David Orme
By Anna Claybourne
By Food and Agriculture Organization, Bondad-Reantaso, Melba G.
By Caughley, Graeme, Sinclair, Anthony R. E.
By Food and Agriculture Organization, Hasan, Mohammad R.
By Uhl, Christopher